API Monitoring
Monitor your APIs continuously — before failures become incidents
AlertSite checks your REST and SOAP APIs from 350+ global locations — validating availability, response time, and data integrity — and alerts your team immediately when something breaks.
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Monitor any API type
AlertSite monitors REST and SOAP APIs — including authenticated endpoints using API keys, OAuth tokens, and custom headers. No code required for basic monitors.
Multi-step API transactions
Chain API calls together into a single transaction — authenticate, create a resource, verify it, clean up — and monitor the full workflow as a single end-to-end test.
Response validation
Check that every response contains the expected data. Validate JSON fields, status codes, response time thresholds, and response body content — and alert if anything is wrong.
OpenAPI import
Import your OpenAPI (Swagger) specification and AlertSite generates monitors for every endpoint automatically — so your monitoring keeps pace with your API development.
Mean time to repair
Reduce API MTTR with monitoring that diagnoses fast
When AlertSite detects an API failure, it captures the full HTTP response — status code, response body, timing breakdown, and error message — so your team can diagnose and resolve issues without needing to reproduce the failure manually.

Start monitoring your APIs today
Try AlertSite free for 14 days — set up your first API monitor in minutes.